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Full text of "The Cambridge Natural History"

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different distribution; It is confined to the high tablelands of
Thibet at an elevation of 15,000 feet and upwards. In correla-
tion with this habitat It has a thicker and more u furry" coat,
which Is, moreover, of a darker shade than that of the Onager.
This coat Is shed in the summer, and replaced by one which is
not so dark In hue. It is an interesting fact that the African
"Wild Asses approach to the zebra type In having at least traces of
strlpings. There are apparently two species. The best known,

FIG. 126.—Nubian "Wild Ass.     Mguus a/ricanus.     x ^.
the Nubian Ass, JK. africanus, Is probably the parent of the
domestic donkey. It has a dorsal longitudinal stripe, and
another across the shoulder—In legend the marks of the Saviour.
The matter of the name of this Ass seems difficult to decide. It
has been called also M, asinus and J8. ta&niopus* It has been
observed that this animal has a great aversion to water, and a
delight in rolling in the dust—both of which characteristics
argue a desert existence. But on the other hand the Klang
will plunge boldly into streams, yet it would seem to be the
descendant of a purely desert form. The Ass is a longer-lived